215565560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{3989}}^1$

素因数の和:4200

約数の個数: 64

約数和(自身を含む): 557323200

約数和(自身を除く): 341757640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 193, 280, 386, 772, 965, 1351, 1544, 1930, 2702, 3860, 3989, 5404, 6755, 7720, 7978, 10808, 13510, 15956, 19945, 27020, 27923, 31912, 39890, 54040, 55846, 79780, 111692, 139615, 159560, 223384, 279230, 558460, 769877, 1116920, 1539754, 3079508, 3849385, 5389139, 6159016, 7698770, 10778278, 15397540, 21556556, 26945695, 30795080, 43113112, 53891390, 107782780, 215565560]

約数ペア:

[(1, 215565560), (2, 107782780), (4, 53891390), (5, 43113112), (7, 30795080), (8, 26945695), (10, 21556556), (14, 15397540), (20, 10778278), (28, 7698770), (35, 6159016), (40, 5389139), (56, 3849385), (70, 3079508), (140, 1539754), (193, 1116920), (280, 769877), (386, 558460), (772, 279230), (965, 223384), (1351, 159560), (1544, 139615), (1930, 111692), (2702, 79780), (3860, 55846), (3989, 54040), (5404, 39890), (6755, 31912), (7720, 27923), (7978, 27020), (10808, 19945), (13510, 15956)]